Container cover applying machine



Aug. 3, 1943. 'A. F. PITYQ 2,325,978

CONTAINER COVER APPLYING MACHINE Filed Oct. 25, 1938 15 Sheets-Sheet 1 INVENTOR ATTO RN EY Aug. 3, 1943. A. F. PITYO 2,325,973

CONTAINER COVER APPLYING MACHINE Filed Oct. 25, 1938 15 Sheets-Sheet 2 267 Egy- Z INVENTOR fllberi EPllyd ATTORNEY Aug. 3, 1943. A, F, PITYQ 2,325,978

CONTAINER COVER APPLYING MACHINE Filed Oct. 25, 1958 15 Sheets-Sheet 3 ATTORNEY Aug. 3, 1943. 1 A. F. PITYO 2,325,978

CONTAINER COVER APPLYING MACHINE Filed Oct. 25, 1938 15 Sheets-Sheet 4 ATTORN EY Aug. 3,1943. A. F. PITYOV cou'mmnn COVER APPLYING momma Filed Oct. 25, 1958 15 Sheets-Sheet 5 lNVENTOR ATTORNEY Aug. 3, 1943. A. F. PlTYO CONTAINER COVER APPLYING MACHINE Filed Oct. 25, 1938 15 She ets-Sheet 6 Qn u 3 INVENTOR- I flEerZFW 49, ATTORN A. F. PlTYO CONTAINER COVER APPLYING MACHINE Filed Oct. 25, 1938 Aug. 3, 1943. 2,325,978

15 Sheets-Sheet 7 g WEE/77$, Z4,

.- a a f 2 3 Z6 52 46 15 11v VEN TOR .fllert FPi 0 ATTORNEY 322 J) @MMQ A. F. P ITYO 2,325,978

CONTAINER COVER APPLYING MACHINE Filed Oct. 25, 1938 15 Sheets-Sheet a u 4 h 5 3% MW 2 R% Y 3 m 0 2A m 1 2 3 1 e u I 3 0 I 5 \\\w\ m :2: 6 z w Aug. 3, 1943.

8- 1943- A. F. PlTYO ,978

CONTAINER COVER APPLYING MACHINE Filed Oct. 25, 1938 15 Sheets-Sheet 9 INVENTOR. JZZ eZZFEQo 30.9 ATTORNE'Y Aug. 3, 1943. A. F. PITYO ,3

coummmn COVER APPLIINGMAGHINE Filed Oct. 25, 193B ls sheets-sneet 10 fzaeziz'n'g'o @4440 A9.

1 ATTORNEY g- 3, 1943. A. F, PITYO 2,325,978

CONTAINER COVER APPLYING MACHINE Filed Oct. 25, 1938 15 Sheets-Sheet 11 INVENTOR ATTORNEY A 3, 1943- A; F. PITYO 2,325,

Y CONTAINER COVER APPLYING MACHINE Filed Oct. 25, 1938 15 Sheets-Sheet l2 l 19 k L gfzov' I d l I 1 5 ATTORNEY 1943. A. F. PiTYO 5,3 27% CONTA INEI CHER APP LYQNG MACHINE Fil-rd 36%,. 25, 1938 15 sheets-s aeet l5 Z22 INVENTOR 3 56116 P5851112 BY ATTORNEY Patented Aug. 3, 1943 QONTAINERCOVER APPLYING MACHINE Albert F. Pityo, Clifton, N.'.l'., assignor to Tri State Cap & Cap Machinery 00., 1110., Newark,

N. .L, a corporation of New Jersey Application October 25, 1338, Serial No. 236.846

15 Claims.

' This invention relates to machines for applying container covers to containers and particularly to machines for applying hood covers or caps to" bottles and the like. I

One of the principal objects of theinvention is toprovide improvedmeans for folding the sections of a hood container cover around the contaiper neck. A further object isto provide means to secure laterally tabbed hood covers to containers. Another object is to provide'means for folding laterallytabbed and fastener carrying sections, on hood container covers. A further object is to provide means ,for securing preattached fasteners. to the lateral tabs of such sections to secure the covers on containers,and means for pre-bending such fasteners. v

Another object is to provide initial hood applying means and final hood securing means. sur-' rounding and outward of the initial means, the first means controlled by stationary cam means. Another object is to produce a machine-for applying container covers in which the inner or central portion of the cover blanks are first brought against the container mouth, then the skirt sections are folded around the container neck, after which oppositely disposedlateral tabs at the outer parts of the blank are aligned to fasteners pre-attached to the blank and which have been pre-bent just previous to entering the folding mechanism andthen to secure parts of the fasteners to the lateral tabs byv suitable means such as by rolling or curling them tgether, thus finally securing the cover on the container. f i

The machine embodies means to supply con.- tainers filled but not supplied with hood covers,

said mechanism is adapted to space the containers apart to the proper distance required when applying the covers, and then transfer them to the cover applying mechanism. The latter mechanism is then caused to operate and in this machine it embodies four cover applying heads parts of which are caused to revolve each onits own axis and also all four heads together are caused to revolve about the central axis of t e machine. 7

There is a revolving table on which the containers are held aligned to the above-mentioned heads as said table revolves and on said table the'containers are raised and lowered to bring them to levels to suit the various operations of applying the covers. When the cover applying operation is completed "the covered and sealed containers are moved from the revolving table onto a suitable discharge conveyor andthen disposed of as desired. I 1

The supplyf of cover material is preferably arranged in aseries of rotatable rolls of strips of blanks and said rolls are preferably mounted with their aires of rotation on a common vertical line. They are housed in a'series of superposed. casings, each casing provided with suitable guide rollers and blank strip chutes. Combined with 10' the guide rollers are means for pro-bending parts of the fasteners which have previously been attached .to the blanks.

Eachcover applying head contains a die member to fold the central part of acover blank and isalso provided with a plurality of folders or folding fingers to fold the parts of the cover adjacent to the periphery thereof. Each head is also provided with two oppositely disposed housings in which the tab aligning mechanism is located,

and at right angles to said mechanism substantially onthe'same plane are two housings oppositely disposed'toeach other'and containing the fastener applying devices or curlers for finally securing the lateral tabs and fasteners together.

The above mechanisms are provided with suitable actuating means and are so arranged that two sizes of containers or more can be'covered at different times by changes in the position of certain parts.

The means I prefer to employ for accomplish- 7 trated in the drawings accompanying and form ing part of this specification, and in which- Figure 1 is a central vertical section of the main part of the machine taken on the line l--l of Figs. 3 and .4, certain parts being in front ele vation. p

Fig. 2 is a vertical sectional elevation of the upper part of the machine taken on the line 2-2 of Fig. 3.

Fig. 3 is a horizontal section taken on the line 33 of Fig. 2.

Fig. 4 is a horizontal section taken on the line 4-4 of Fig. 1.

Fig. 5 is a horizontal section taken on the line 55 of Fig. 1'.

Fig. '6 is a plan of the entire machine partly in horizontal section on the line 4- of Fig. 1.

' Fig.' 7 is a plan partly in horizontal section on the line 1--1 of Fig. 1.

Fig. 8 is an enlarged vertical section taken on the line 8-8 of Fig. 6. V

Fig. 9 is an enlarged central vertical section of one of the cover applying heads taken on the line Q9 of Fig. 3. Fig. 10 is an enlarged horizontal section of the same taken on the line lll of Fig. 9

Fig. 11 is an enlarged vertical sectional elevation of the lower central part of a cover applying head and taken atthe middle part of the line 99ofFi .3.

Fig. 12is a sectional plan taken l2|2 of Fi 11;

Fig. 13 is a plan of one of the'tab aligning da at the line vices of a cover applying head, the parts of saiddevice being in their retracted position.

I Fig. 14 is a plan of said device with the parts a in their projected position.

, Fig. 15 is a longitudinal section'of the device taken on the line !5|5 of Fig. 14.

ingdevices, or curlers of a cover applying head,

showing the parts in their retracted position.

Fig. 24 is a horizontal section of the same taken onthe line 24--24 of Fig. '25 the parts being shown in their projected position.

Fig. 25 is a longitudinal vertical section taken on the line 2525 of Fig. 24.

Fig. 26 is a transversevertical section of the curling device taken on the line 26-26 of Fig. 24. ,Fig. 27 is a plan of the curler carying slides. v Fig. 28 is. a plan of the outer curler slide. Fig. 29 is a plan of the main slide of the curling device.

Fig. 30 is a longitudinal section of the same taken on the line 39-3601? Fig. 29.-

Figf3l'is a vertical section taken on the line 3l-3i'of Fig. 4.

' Fig; 32 is a plan showing the Geneva wheels of the carrier member and the gears operating in conjunction therewith.

Fig.3?) is a front elevation of the same showing the middle wheel in vertical section.

Fig. 34 is a plan of one of the blank strip reel casings and parts carried thereby, the casing being in horizontal section.

Fig. 35 is a vertical section through portions of the prebending wheel and feeding wheel on an enlarged scale and taken on the line 35-,35 of Fig. 34. V

Fig. 36 is a plan of one form of cover blank to be used in my improved cover applying machine.

Fig. 37 is a side elevation of this form as applied on a container.

Fig. 38 is an enlarged detail section of the same taken on the line 38-38 of Fig. 37.

Fig. 39 is a diagrammatic view illustrating the method of applying the cover blank.

Fig. 40 is a similar view showing a further step in said method.

Fig, 41 is a diagrammatic view of the driving gearing'of one of the cover applying heads.

Fig. 42 is a central vertical section of the part lefifof a cover applying head, i

Fig. 43 is a horizontal section of the same taken onthe line 4363 of Fig. 42.

Fig. 44 is a plan of the centering cam.

Fig. 45 is a diagram illustrating the initial cover folding operation.

[ various portions of the machine.

indicates standard driving unit and need not be further described except to state that it has at Fig. 46 is an enlarged detail vertical section of a part of the cover applying head and illustrating the univeral shafts E4512 and ISM.

Referring to Fig. 6 of the drawings it will be seen that my improved container cover applying machine comprises a main cover applying mechanism which is indicated by A, a container supply conveyor B, a container transfer mechanism C,'a container discharge conveyor D, and a discharge transfer device E.

7 Referring to Figs, 1 and 7, the numeral 2 indicates the machine base which may be of any suitable form and ishere shown as made in a rectangular shape and carried to a height suitable to enclose certain mechanism for driving The numeral 3 one part a shaft 4 capable of being driven at different'speeds and having secured to it the sprocket wheel 5 which is connected to a suitable chain such as 6' which is adapted to drive the I sprocket wheel I secured by a safety pin 8 to the disk 9 which is keyed to the horizontal shaft l0 journaled in bearings .H and i2 secured to the base 2. I V 7 On the right hand end of the shaft i8 is secured a miter gear it which meshes with a companion'miter gear l4 secured to the horizontal shaftjfi which lies at right angles to the shaft H3 and is journaled in the bearings l6 and H secured to the base 2. Secured to the shaft i5 is a worm 13 which drives the worm wheel l9 secured to the vertical shaft 28, which is journal'ed in bearings 2| and E2 (seeFig. 6) There is a thrust bearing lfuifor the shaft 15 located between the worm l8 and the inner bearing pa t Also secured to the shaft 29 is a miter gear 23 which meshes with a companion miter gear 24 secured to a third horizontal shaft 25 journaled in bearings 28 and 2'! secured to the base 2. Secured to" the shaft. 25 is a bevel gear 28 which meshes with a larger bevel gear 28 secured to the second vertical shaft 39 which is journaled in a bearing 3| and sleeve 32 in the pedestal 33 which is secured to the base 2 by the bolts 34. Connected with'the vertical shaft 2c is the mechanism E, and connected with the vertical shaft 38 arethe mechanisms B and C, all of which will be more fully described hereinafter.

Referring to Figs. 1 and 4, it will be seen that the main cover applying mechanism embodies a stationary annular platform 46 which is secured to the base 2 by bolts 4! and has two box cam grooves or slots, one being indicated by 42 and located in its upper flat part and the other indicated by A l located in its periphery. Rigidly secured to the base member 2, assisted by a bracket 45 bolted to the base member, is'the tubular vertical column or shaft 46, having a solid shaft 48 secured to its upper part and extending upward as far as and having themultiple pathed stationary cam 49 secured to its upper end. At the upper end of the tubular shaft 45 is a thrust bearing 50 on which the sleeve 5! is rotatively mounted. The said sleeve 5! extends downwardly alongthe tubular shaft 45 and is journaled thereon by the bushings 52 forced into the two end parts of said sleeve.

in the slots 56d of the member I55.

The channels I 45 support the tab aligning devices M8 and areclosed by the caps I49 held by the screws 55%. The curlers I45 and aligning devices Hi8 have side grooves *II and I52 respectively and are secured in position in their respective channels by plates I53 :held by screws ifi ii u Within the tubular-member i25'and extending down into its cylindrical recess I36 isa second tub member 155 which has an enlarged part 1 located in saidrecess and provided with out.-'

.wardly extending projections I51 which are secured to the lower part I 24 of the casing MI by bolt E58. The member 155 has an upwardly extending recess i5 9 which houses the cover folding die i5- and 462. -The folders lEiI are pivoted on pins and the folders or jaw members lei I 63 Slidable in the bore 965 of the member E55 is a third tubular member 66 which has four lugs id! at its lower part. Said lugs have slots iSB which are pivoted the folders I62 onrthe' pins Hi8. member Ifiil'is secured to the lower sides of the lugs it! by screws Hi; There are four pins. H2 eachslidable in one of the lugs iii! and aligned to engage one of the four folders I62. Upward movement of the member 5% brings the pins 5'52 against the stop screws H3 in the member 5-5 and causes the movement of the folders I62 to the plain untabbed sectionsof the cover. The folders I52 are normaliy held in their open position by the coil springs il-ia. The operation of the die and folders will be more fully described hereinafter.

The folder Iiii press the lower parts of the fastener carrying sections and the tabbed sections and are moved to and fro by of the collars lid on the tube I 45 which is slidable the member I65, and which has an extension Vida which is screw threaded at its upper part to receive the nut H5. The latter lies in arecess i'l'la of the collar H! and a coil spring i 3 is placed in said recess so as to be interposed between the. collar ill and nut I'lii to maintain resilient connection between them. The collar il'l is provided with a groove illc for connection to the fork of the lever I 09, said lever being adapted to be moved-by means of the antifriction roller ifia moving in the cam slot 39 of the stationary cam 49 as the carrier member id i revolves.

Slidable up and down in the tube H5 is the rod if?! having the blank holder I82 secured to its lower end. Its upper end is screw threaded to receive the screw threaded collar 83 and the lock nut-i8 3 for locking the collar in place. The collar has a groove I33a for connecting it with the fork of the lever Hi3 which lever is given movement by the anti-friction roller Iota moving on the cam path i85 of the cam 49.

Tab aligning devices Each of the tab aligning devices I48 is pro vided with a housing I81, which has Ways I88 in it lower part. Housing 58'! is provided with flanges 18s and grooves I 52 by which it is secured in'the channel lid in the casing part I24. Each housing l 8? has a cover I99 secured to it by screws iili. Each said cover is provided with a hub Nita in which is formed a bearing i950 for the short shaft i532. There is an outer slide 93 provided with a groove H94 and transverse openings I95 leading to the same. There is also an inner slide I535 having an extended narrow part IQT to slide in the groove i234 of the outer slide and also having a wider part Ifiiia whichextends :into the openings 95; Two spring pockets I98 are provided in its rearward part in which the coil springs I99 are placed to bear against the projections 28B of the outer slide and normally press the inner slide forward. The outer slide is provided with spring pockets 2M at its upper side. When the slides are assembled they together fit the grooves or ways I88 in the lower part of the housing I81. Mounted on the inner slide by means of the screw 2E2 is a bifurcated tab aligning member 2&3 having two tab align- :ing portions 234 and two upwardly extending portions 255 against which the coil springs 2556 located in the pockets 2%! are adapted to press for causing a swivelling action to the member 293.

Theouter slide I93 carries two cam rollers 201 journaled on the pins 203 secured to the slide,

laterally shaft so shaped that its driving element can be inserted in only one way.

' Fastener securing devices or curlers Each of the fastener securing devices or curlers is provided with a housing 2i2 having ways .2I3 in the interior thereof andhavingfianges 244 provided with grooves I5I. Each housing 2 I2 has a cover 2E5 provided with a hub 2I5aand a bearing therein for the shaft 215. There is a main slide 2!! having a front central slot 2; in its lower part and a'rear slot 226. There is an oblong perforation in the top of the slide 2I'I through which the shaft 2I6 passes.

There is an inner curler carrying slide 22I which is reciprocative in the slots 2m and 220 of themain slide ZI'I, and said slide 22I has side slots 222, curler'recesses 223, spring pockets 224 and plunger pockets 226a. There is also an outer curler slide 225 having four upwardly arranged projections, the two rearward ones 226 being adapted to lie in the side slots 222 and'the two forward ones lying against the curlers 228. There is a nose piece 229 mounted on the main slide 2!! by rivets 229a.

' The curlers 228 are held in the recesses 223 of the inner curler slide 22I by means of their inner ends 228a, which are rounded and of greater width than the forward parts of said curlers. Said forward parts have concave ends to perform the curling operations. Two levers 23I are provided one on each side of the main slide 2!! and said levers 23! are pivoted at 232 in the side slots 299 of the main slide. Each of the levers 23! has ananti-friction roller 233 by-means of which it is operated by one of the two cams 234 secured to the shaft 2 i 6. There are springs 23Id to turn the levers 23d towards the cams 234.

The opposite ends of the levers 23! are provided slide 22I is slightly concaved and forms slots 2M 

